G.fast: evolving the copper access network

Timmers, Michael; Guenach, M.; Nuzman, C.; Maes, Jochen

doi:10.1109/mcom.2013.6576342

Cited by 111 publications

(45 citation statements)

References 5 publications

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“…1 In direct access, the copper wire can be connected by means of the main distribution frame (MDF) located in the CO (see Figure 4) to the line termination/DSLAM (LT/DSLAM) of the OLO that is hosted in the incumbent's CO. The MDF is usually a large "manual" patch panel that allows arbitrary permutations between N input-output twisted pairs, where N can be as large as several tens of thousands in the biggest COs.…”

Section: Dsl Unbundlingmentioning

confidence: 99%

“…To further boost speed and QoS, the so-called "vectoring" technique has been introduced, which that can improve VDSL2 implementations in certain architecture scenarios. Furthermore, standardization activities are presently going on inside the International Telecommunication Union (ITU) to introduce a new hybrid fiber-copper standard, the so-called G.fast [1], capable to provide aggregated US+DS data rates in the order of 1 Gbit/s in fiber-to-the-distribution point (FTTDp) architectures. Figure 1 shows the migration path of DSL technologies from ADSL to G.fast.…”

Section: Introductionmentioning

confidence: 99%

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Unbundling in Current Broadband and Next-Generation Ultra-Broadband Access Networks

Gaudino

Giuliano

Mazzenga

et al. 2014

Fiber and Integrated Optics

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This article overviews the methods that are currently under investigation for implementing multi-operator open-access/shared-access techniques in nextgeneration access ultra-broadband architectures, starting from the traditional "unbundling-of-the-local-loop" techniques implemented in legacy twisted-pair digital subscriber line access networks. A straightforward replication of these copper-based unbundling-of-the-local-loop techniques is usually not feasible on next-generation access networks, including fiber-to-the-home point-to-multipoint passive optical networks. To investigate this issue, the article first gives a concise description of traditional copper-based unbundling-of-the-local-loop solutions, then focalizes on both next-generation access hybrid fiber-copper digital subscriber line fiber-to-the-cabinet scenarios and on fiber to the home by accounting for the mix of regulatory and technological reasons driving the next-generation access migration path, focusing mostly on the European situation.

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Section: Dsl Unbundlingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Unbundling in Current Broadband and Next-Generation Ultra-Broadband Access Networks

Gaudino

Giuliano

Mazzenga

et al. 2014

Fiber and Integrated Optics

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“…To fulfil the ambition of Gb/s speeds over copper, the latest Digital Subscriber Line (DSL) standard of G.fast [1], [2] further extends the copper bandwidth up to around 200 MHz. However, this bandwidth expansion inevitably increases the Far-End-Cross-Talk (FEXT) between copper lines.…”

Section: Introductionmentioning

confidence: 99%

Expanded Constellation Mapping for Enhanced Far-End-Cross-Talk Cancellation in G.fast

et al. 2017

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Abstract-We propose the novel concept of Expanded Constellation Mapping (ECM) for maximising the received signal power, while cancelling the Far-End-Cross-Talk (FEXT) in copper based wireline communications. The goal of ECM is to beneficially map the transmitted symbol vector to its expanded constellation set by carefully exploiting the copper channels' specific characteristics. To elaborate, ECM is comprised of the control entity and of the match entity, where the former determines how ECM would be applied, while the latter searches for the best mapping of the transmitted symbol vector to the expanded constellation set. Our numerical results demonstrate that with the aid of ECM, more than 25 dB power efficiency gain may be achieved over linear vectoring. Similarly, about 20 dB gain may be achieved over nonlinear vectoring. From an implementation point of view, ECM imposes minimal structural changes on G.fast, whilst exhibiting beneficial reconfigurability and compatibility.

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“…The copper technology that is required for such a Fibre to the Curb (FttCurb) or Hybrid FttH solution with sufficient bandwidth is currently developed and is named G.Fast. First results of this development make it plausible that Hybrid FttH using G.Fast is technically feasible up to 1 Gb/s [1]. The International Telecommunication Union is carrying on a standardisation activity for the G.fast solution as part of the so-called fourth generation broadband system architectures [2].…”

Section: Introductionmentioning

confidence: 99%

“…Most of earlier work on G.Fast focuses on the performance of G.Fast solely or connected by a fibre network [1], [5], [6] and on the planning of the G.Fast solution [7], also based on a fibre connection to the new G.Fast node. In [8] presented as alternative for the fibre connection for the G.Fast node, based on ideas in [9].…”

Section: Introductionmentioning

confidence: 99%

Advantages of Copper Backhauling for G.Fast Nodes

Phillipson¹,

Brink²

2015

JACN

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Abstract-A next step in bringing high bandwidth over an existing copper infrastructure is Fibre to the Curb, using G.Fast, which prevents a huge investment compared to a full fibre roll out. To save additional costs in this roll out, the existing copper can be reused as backhaul for the new active point of G.Fast, where currently mostly a fibre backhaul is considered. This paper presents the advantages of copper backhauling for G.Fast nodes and studies the planning and expected bandwidth coverage of this Copper Backhaul solution in two cases. These cases show that this solution is a logical next step in the network migration, offering cost saving, flexibility and the needed bandwidth gain for the consumers.Index Terms-Access network planning, next generation broadband, G.Fast performance.

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G.fast: evolving the copper access network

Cited by 111 publications

References 5 publications

Unbundling in Current Broadband and Next-Generation Ultra-Broadband Access Networks

Unbundling in Current Broadband and Next-Generation Ultra-Broadband Access Networks

Expanded Constellation Mapping for Enhanced Far-End-Cross-Talk Cancellation in G.fast

Advantages of Copper Backhauling for G.Fast Nodes

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